SudokuHard

Hard Sudoku — Puzzle 37

4
928
951
3
687
5792
79
3864
98273

How to play

Fill every row, every column and every 3 by 3 box with the numbers 1 to 9, using each number once.

This puzzle has 26 given numbers and exactly one solution, so it can always be finished by reasoning alone.

862341795
513769248
479528316
786293451
924615837
135874962
247136589
351987624
698452173